header{
	display: block;
	margin: 0 auto;
	width: 500px;
	text-align: center;
}

header h1{
	font-family: Arial;
	font-size: 60px;
	font-weight: bold;
}

header #newgamebutton{
	display: block;
	margin: 20px auto;
	width:100px;
	padding: 10px 10px;
	background-color: #8f7a66;
	font-family:Arial;
	color: white;
	border-radius: 10px;
	text-decoration: none;
}

header #newgamebutton:hover{
	background-color: #9f8b77;
}

header p{
	font-family: Arial;
	font-size: 25px;
	margin: 20px auto;
	
}


#grid-container{
    width:460px;
    height:460px;
    padding:20px;

    margin:50px auto;
    background-color:#bbada0;

    border-radius: 10px;
    position: relative;
}

.grid-cell{
    width:100px;
    height:100px;
    border-radius: 6px;
    background-color:#ccc0b3;

    position: absolute;
}

.number-cell{
    border-radius: 6px;

    font-family: Arial;
    font-weight:bold;
    font-size:60px;
    line-height:100px;
    text-align:center;

    position:absolute;
}